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Finding the Fourth Proportional to 45,398.67, 62,643.40 and 25,255.79

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Solution

The fourth proportional to 45,398.67, 62,643.40 and 25,255.79 is: 34,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,398.67 : 62,643.40 = 25,255.79 : x
  2. Step 2: Convert to fraction form
    45,398.67/62,643.40 = 25,255.79/x
  3. Step 3: Cross multiply
    45,398.67x = 62,643.40 × 25,255.79
  4. Step 4: Simplify right side
    45,398.67x = 1,582,108,555.29
  5. Step 5: Solve for x
    x = 1,582,108,555.29/45,398.67
  6. Step 6: Final answer
    x = 34,849.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.